Question

if(X+1/X)=5*5,find the value of X2+1/X2and X4+1/X4
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Answer 1

Answer:

square both side

( x - 1/x )² = 5²

=> x² + 1/x² - 2 = 25

=> x² + 1/x² = 27 [ 1 answer ]

Step-by-step explanation:

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